[PATCH 1/3] mtd: rawnand: denali-spl: Add missing hardware init

[Marek Vasut <marex@denx.de>]

While the Denali NAND is initialized by the BootROM in SPL, there
are still a couple of settings which are missing. These can trigger
subtle corruption of the data read out of the NAND. Fill these
settings in just like they are filled in by the full Denali NAND
driver in denali_hw_init().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 drivers/mtd/nand/raw/denali_spl.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mtd/nand/raw/denali_spl.c b/drivers/mtd/nand/raw/denali_spl.c
index dbaba3cab2..b8b29812aa 100644
--- a/drivers/mtd/nand/raw/denali_spl.c
+++ b/drivers/mtd/nand/raw/denali_spl.c
@@ -173,6 +173,13 @@ void nand_init(void)
 	page_size = readl(denali_flash_reg + DEVICE_MAIN_AREA_SIZE);
 	oob_size = readl(denali_flash_reg + DEVICE_SPARE_AREA_SIZE);
 	pages_per_block = readl(denali_flash_reg + PAGES_PER_BLOCK);
+
+	/* Do as denali_hw_init() does. */
+	writel(CONFIG_NAND_DENALI_SPARE_AREA_SKIP_BYTES,
+	       denali_flash_reg + SPARE_AREA_SKIP_BYTES);
+	writel(0x0F, denali_flash_reg + RB_PIN_ENABLED);
+	writel(CHIP_EN_DONT_CARE__FLAG, denali_flash_reg + CHIP_ENABLE_DONT_CARE);
+	writel(0xffff, denali_flash_reg + SPARE_AREA_MARKER);
 }
 
 int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
-- 
2.24.1